Steam trap



man; 2, 1923.

I c. E. VANCE ET AL.

STEAM TBA-P.

FILED JULY 20, 1921.

P14 1 .35 l v 219 CHARLES E. vanes sun CHARLES S. MGGLELLAND, or rrrrssunen, ruNn'sYLv/anm.

STEAM Tsar.

Application filed July 20, 1921. Serial No. 486,050.

To alt w how, it in (4 2 coerce m Be it known that we, Crrannns E. VAnon and CHAnLns S. lilcCilnlmivo, citizens of the Unite States, residing l ittsburgh, in the county oi Allegheny and State of leiinsylvania, have invented certain new and usetul .lniprovei'nents in Steam Traps, oi? which the "following is a specification.

Our invention relates to'improvements in steam aps tor the purpose of collecting water of condensation in a steam line and blowing it out from time to time. It has in view to provide improved means for ett'eetually unseating the outlet valve, means for maintaining the valve stem and its parts in alinement, means for intermittently rotating the outlet valve, and other features of improvement, shall be more fully hereinafter described.

T he present invention is an improvement in the steam trap of prior Patent No. 847,- lirll, ot'r' March 12, 190?, to C. E. Vance, to which it is generally similar in the main construction.

In the drawings:

Fig. l is a central vertical section through the trap, showing it empty;

Fig. 2 is a cross section on the line H ll of Fig. 1;

Fig. 3 is a detail view oi the outlet sealin valve.

In the drawings, 2 is the main casing having connection at 3 with a steam line delivery water of condensation into the interior of easing; 2, and against and around a battle l. A bucket 5 is fixedly secured by out (3 to the lower end ol' a stem '7 having guiding wings S engaoing the interior of a tubular extension 9 0 he casing top 10. A. suppleincntal top 11 provide-c with a central hollow outlet o 'iening connected with a dis- (harge pipe 12.2, and within top ll is an inserted 'alve seat 15% for making sealing enc-wigeiiieiit rith a val e having a central stein 1,5. al e ll is ire rotatable, either upon stern or with the item, by suitable niounting theieof, but so arrang that the by upward. the stem is to! outward valve will be thrust upwardly retracted, the valve may reve ie passage oi water or steam.

A surrounding cage 16 cylindricaly en1 braces valve 14-. for longitudinal movement thereof, and cage 16 is secured by threads in the cap 11. It is provided. with a-series oi tangential openings 17 through which the outgoing water and steam pass, and valve le has series of radial slots or wing taces 18 acrm s its outer seat portion and in the path of the tangential slot currents.

By this means, a partial rotation of valve 14; is ertected at each operation, thereby keeping he valve and seat clean and unobstructed,

and giving it a slight grinding action.

A guiding tube or bushing 19 for stem 15 is held in t'he lower part of cage 16 within which the stem has a limited rising and falling movement, and the lower end of the tern has a head 29 which in turn has a limment.

Above valve seat 13 is a central outlet opening preferably within a bushing 26 and closed by a check valve 27.

Said

check valve is seated by action of a spring 28 bearing against a central apertured bearing 29 having a temper screw 30 for control ling the pressure of the sprin dered neck 33 of a temper screw 3%.

A. lever 31. is pivoted at 82 and its free ad is slotted and engaged by the shoul- Screw El i has a terminal handle 35 and is threaded within a. steam tight bushing 36 extending downwardly through cover 10 and having an upper stun ing box 37. A cross bar or .-:1rn'i 38 extends beyond pivot 32 across the top of the bucke 5 and is provided with depressing pins 39 adapted to be adjusted by nianipulatlon of the screw 3% to engage downwardly against the bucket edge to llX- e t t dly hold the bucket in partly lowered posiion against return movement, when empied. By this means, the valve 1% is reieved from sealing pressure against its seat for as long a period as may be desired for any purpose, for blowing out the lure, etc.

The construction and operation of the inve ition will be readily understood and apeciated from the foregoing description.

1 )ue to the shouldered slip joint between the upper sect lower portion. secured to the bucket,

ion of the valve stem and the the fall it the bucket under weight oi water etects a jarring engagement between the houldered abutments 20-22, thereby posi- Lively unseating the valve and ovelriron'liiig any tenylency to stick. The current oat Wa- .ter or steam or Water and steam, passing outwardly through the tangential ports 17 and across the vaned passages 18, will impart rotary movement to the 'alve and lnaii'ltain it in clear contacting condition at all times. i

The construction of the trap as a Whole isveryco mpact, comparatively simple and economical, and provides for continuous and economical operation. It may be changed or varied in design, or in different details of construction, but all such changes are to be understood. as Within the scope of the following claims. p

What We claim is:

1. A steam trap having a vertically movable bucket and an outlet port having a surrounding depending shell provided With tangential openings therethrough, an outer surrounding circulation coping extending below-the depending shell into the bucket, a rotatable valve Within the depending shell adapted to open and close the outlet port provided With radial abutments registering with the tangential openings, and means connecting the valve With the bucket pro-' viding a limited lost motion movement A steam trap having a vertically movable bncket and an outlet port having a surrounding depending shell} provided wvith tangential openings therethrough, an outer surrounding circulation coping extending below the depending shell into the bucket, a rotatable valve Within the depending shell adapted to open and close the outlet port provided With radial abutments registering with the tangential openings, a stem therefor, and a stem connected with the bucket having loose shoulderedconnection with the In testimony whereof We hereunto affix our signatures.

CHARLES E. VANCE. CHARLES S. MGCLELLAND. 

